89390865331 has 4 divisors (see below), whose sum is σ = 92274441664. Its totient is φ = 86507289000.

The previous prime is 89390865313. The next prime is 89390865401. The reversal of 89390865331 is 13356809398.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 89390865331 - 2⁹ = 89390864819 is a prime.

It is a super-2 number, since 2×89390865331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89390865301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1441788120 + ... + 1441788181.

It is an arithmetic number, because the mean of its divisors is an integer number (23068610416).

Almost surely, 2^89390865331 is an apocalyptic number.

89390865331 is a deficient number, since it is larger than the sum of its proper divisors (2883576333).

89390865331 is a wasteful number, since it uses less digits than its factorization.

89390865331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2883576332.

The product of its (nonzero) digits is 4199040, while the sum is 55.

The spelling of 89390865331 in words is "eighty-nine billion, three hundred ninety million, eight hundred sixty-five thousand, three hundred thirty-one".